Remaining at #2 is Hilary Duff's "So Yesterday," while Idol winner Ruben Studdard's "Flying Without Wings" b/w "Superstar" remains #4. On the Nielsen SoundScan U.S. Singles Sales chart, though, Hilary Duff has grabbed the top spot for the second straight week (after 2 weeks at #2), with Clay #2 again (after 10 weeks at #1) and Ruben #3 (for the fifth straight week, after 7 weeks at #2).

Also climbing the singles chart in both countries is the American Juniors single "One Step Closer," which rose from #8 to #6 in the U.S. in its second week, and which debuted at #21 in Canada.

Hilary Duff's debut contemporary CD, Metamophosis, was released this week and currently ranks #18 on Amazon.com. Meanwhile, Clay Aiken's debut CD, now entitled Clay Aiken, will not ship until October 14 but currently ranks #12 on Amazon.com. Thus, it looks like the competition between these two singers who double as TV stars will keep chugging along for a while -- although it may move to the album charts.